OAS 5.GM.2.2 (Oklahoma, 5th Grade): "Estimate the perimeter of polygons and create arguments for reasonable perimeter values of shapes that may include curves." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.
Geometry & Measurement (GM)5.GM.2 Determine volume using the object’s dimensions. Compare and analyze rectangular prisms with equivalent volume to recognize their different dimensions.5.GM.2.2Estimate the perimeter of polygons and create arguments for reasonable perimeter values of shapes that may include curves.